1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * SiS 300/540/630[S]/730[S], |
4 | * SiS 315[E|PRO]/550/[M]650/651/[M]661[F|M]X/740/[M]741[GX]/330/[M]760[GX], |
5 | * XGI V3XT/V5/V8, Z7 |
6 | * frame buffer driver for Linux kernels >= 2.4.14 and >=2.6.3 |
7 | * |
8 | * 2D acceleration part |
9 | * |
10 | * Based on the X driver's sis300_accel.h which is |
11 | * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria |
12 | * and sis310_accel.h which is |
13 | * Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria |
14 | * |
15 | * Author: Thomas Winischhofer <thomas@winischhofer.net>: |
16 | * (see http://www.winischhofer.net/ |
17 | * for more information and updates) |
18 | */ |
19 | |
20 | #ifndef _SISFB_ACCEL_H |
21 | #define _SISFB_ACCEL_H |
22 | |
23 | /* Guard accelerator accesses with spin_lock_irqsave? Works well without. */ |
24 | #undef SISFB_USE_SPINLOCKS |
25 | |
26 | #ifdef SISFB_USE_SPINLOCKS |
27 | #include <linux/spinlock.h> |
28 | #define CRITBEGIN spin_lock_irqsave(&ivideo->lockaccel, critflags); |
29 | #define CRITEND spin_unlock_irqrestore(&ivideo->lockaccel, critflags); |
30 | #define CRITFLAGS unsigned long critflags; |
31 | #else |
32 | #define CRITBEGIN |
33 | #define CRITEND |
34 | #define CRITFLAGS |
35 | #endif |
36 | |
37 | /* Definitions for the SIS engine communication. */ |
38 | |
39 | #define PATREGSIZE 384 /* Pattern register size. 384 bytes @ 0x8300 */ |
40 | #define BR(x) (0x8200 | (x) << 2) |
41 | #define PBR(x) (0x8300 | (x) << 2) |
42 | |
43 | /* SiS300 engine commands */ |
44 | #define BITBLT 0x00000000 /* Blit */ |
45 | #define COLOREXP 0x00000001 /* Color expand */ |
46 | #define ENCOLOREXP 0x00000002 /* Enhanced color expand */ |
47 | #define MULTIPLE_SCANLINE 0x00000003 /* ? */ |
48 | #define LINE 0x00000004 /* Draw line */ |
49 | #define TRAPAZOID_FILL 0x00000005 /* Fill trapezoid */ |
50 | #define TRANSPARENT_BITBLT 0x00000006 /* Transparent Blit */ |
51 | |
52 | /* Additional engine commands for 315 */ |
53 | #define ALPHA_BLEND 0x00000007 /* Alpha blend ? */ |
54 | #define A3D_FUNCTION 0x00000008 /* 3D command ? */ |
55 | #define CLEAR_Z_BUFFER 0x00000009 /* ? */ |
56 | #define GRADIENT_FILL 0x0000000A /* Gradient fill */ |
57 | |
58 | /* source select */ |
59 | #define SRCVIDEO 0x00000000 /* source is video RAM */ |
60 | #define SRCSYSTEM 0x00000010 /* source is system memory */ |
61 | #define SRCCPUBLITBUF SRCSYSTEM /* source is CPU-driven BitBuffer (for color expand) */ |
62 | #define SRCAGP 0x00000020 /* source is AGP memory (?) */ |
63 | |
64 | /* Pattern flags */ |
65 | #define PATFG 0x00000000 /* foreground color */ |
66 | #define PATPATREG 0x00000040 /* pattern in pattern buffer (0x8300) */ |
67 | #define PATMONO 0x00000080 /* mono pattern */ |
68 | |
69 | /* blitting direction (300 series only) */ |
70 | #define X_INC 0x00010000 |
71 | #define X_DEC 0x00000000 |
72 | #define Y_INC 0x00020000 |
73 | #define Y_DEC 0x00000000 |
74 | |
75 | /* Clipping flags */ |
76 | #define NOCLIP 0x00000000 |
77 | #define NOMERGECLIP 0x04000000 |
78 | #define CLIPENABLE 0x00040000 |
79 | #define CLIPWITHOUTMERGE 0x04040000 |
80 | |
81 | /* Transparency */ |
82 | #define OPAQUE 0x00000000 |
83 | #define TRANSPARENT 0x00100000 |
84 | |
85 | /* ? */ |
86 | #define DSTAGP 0x02000000 |
87 | #define DSTVIDEO 0x02000000 |
88 | |
89 | /* Subfunctions for Color/Enhanced Color Expansion (315 only) */ |
90 | #define COLOR_TO_MONO 0x00100000 |
91 | #define AA_TEXT 0x00200000 |
92 | |
93 | /* Some general registers for 315 series */ |
94 | #define SRC_ADDR 0x8200 |
95 | #define SRC_PITCH 0x8204 |
96 | #define AGP_BASE 0x8206 /* color-depth dependent value */ |
97 | #define SRC_Y 0x8208 |
98 | #define SRC_X 0x820A |
99 | #define DST_Y 0x820C |
100 | #define DST_X 0x820E |
101 | #define DST_ADDR 0x8210 |
102 | #define DST_PITCH 0x8214 |
103 | #define DST_HEIGHT 0x8216 |
104 | #define RECT_WIDTH 0x8218 |
105 | #define RECT_HEIGHT 0x821A |
106 | #define PAT_FGCOLOR 0x821C |
107 | #define PAT_BGCOLOR 0x8220 |
108 | #define SRC_FGCOLOR 0x8224 |
109 | #define SRC_BGCOLOR 0x8228 |
110 | #define MONO_MASK 0x822C |
111 | #define LEFT_CLIP 0x8234 |
112 | #define TOP_CLIP 0x8236 |
113 | #define RIGHT_CLIP 0x8238 |
114 | #define BOTTOM_CLIP 0x823A |
115 | #define COMMAND_READY 0x823C |
116 | #define FIRE_TRIGGER 0x8240 |
117 | |
118 | #define PATTERN_REG 0x8300 /* 384 bytes pattern buffer */ |
119 | |
120 | /* Transparent bitblit registers */ |
121 | #define TRANS_DST_KEY_HIGH PAT_FGCOLOR |
122 | #define TRANS_DST_KEY_LOW PAT_BGCOLOR |
123 | #define TRANS_SRC_KEY_HIGH SRC_FGCOLOR |
124 | #define TRANS_SRC_KEY_LOW SRC_BGCOLOR |
125 | |
126 | /* Store queue length in par */ |
127 | #define CmdQueLen ivideo->cmdqueuelength |
128 | |
129 | /* ------------- SiS 300 series -------------- */ |
130 | |
131 | /* BR(16) (0x8240): |
132 | |
133 | bit 31 2D engine: 1 is idle, |
134 | bit 30 3D engine: 1 is idle, |
135 | bit 29 Command queue: 1 is empty |
136 | bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0] |
137 | bits 15:0: Current command queue length |
138 | |
139 | */ |
140 | |
141 | #define SiS300Idle \ |
142 | { \ |
143 | while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \ |
144 | while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \ |
145 | while((MMIO_IN16(ivideo->mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){} \ |
146 | CmdQueLen = MMIO_IN16(ivideo->mmio_vbase, 0x8240); \ |
147 | } |
148 | /* (do three times, because 2D engine seems quite unsure about whether or not it's idle) */ |
149 | |
150 | #define SiS300SetupSRCBase(base) \ |
151 | if(CmdQueLen <= 0) SiS300Idle;\ |
152 | MMIO_OUT32(ivideo->mmio_vbase, BR(0), base);\ |
153 | CmdQueLen--; |
154 | |
155 | #define SiS300SetupSRCPitch(pitch) \ |
156 | if(CmdQueLen <= 0) SiS300Idle;\ |
157 | MMIO_OUT16(ivideo->mmio_vbase, BR(1), pitch);\ |
158 | CmdQueLen--; |
159 | |
160 | #define SiS300SetupSRCXY(x,y) \ |
161 | if(CmdQueLen <= 0) SiS300Idle;\ |
162 | MMIO_OUT32(ivideo->mmio_vbase, BR(2), (x)<<16 | (y) );\ |
163 | CmdQueLen--; |
164 | |
165 | #define SiS300SetupDSTBase(base) \ |
166 | if(CmdQueLen <= 0) SiS300Idle;\ |
167 | MMIO_OUT32(ivideo->mmio_vbase, BR(4), base);\ |
168 | CmdQueLen--; |
169 | |
170 | #define SiS300SetupDSTXY(x,y) \ |
171 | if(CmdQueLen <= 0) SiS300Idle;\ |
172 | MMIO_OUT32(ivideo->mmio_vbase, BR(3), (x)<<16 | (y) );\ |
173 | CmdQueLen--; |
174 | |
175 | #define SiS300SetupDSTRect(x,y) \ |
176 | if(CmdQueLen <= 0) SiS300Idle;\ |
177 | MMIO_OUT32(ivideo->mmio_vbase, BR(5), (y)<<16 | (x) );\ |
178 | CmdQueLen--; |
179 | |
180 | #define SiS300SetupDSTColorDepth(bpp) \ |
181 | if(CmdQueLen <= 0) SiS300Idle;\ |
182 | MMIO_OUT16(ivideo->mmio_vbase, BR(1)+2, bpp);\ |
183 | CmdQueLen--; |
184 | |
185 | #define SiS300SetupRect(w,h) \ |
186 | if(CmdQueLen <= 0) SiS300Idle;\ |
187 | MMIO_OUT32(ivideo->mmio_vbase, BR(6), (h)<<16 | (w) );\ |
188 | CmdQueLen--; |
189 | |
190 | #define SiS300SetupPATFG(color) \ |
191 | if(CmdQueLen <= 0) SiS300Idle;\ |
192 | MMIO_OUT32(ivideo->mmio_vbase, BR(7), color);\ |
193 | CmdQueLen--; |
194 | |
195 | #define SiS300SetupPATBG(color) \ |
196 | if(CmdQueLen <= 0) SiS300Idle;\ |
197 | MMIO_OUT32(ivideo->mmio_vbase, BR(8), color);\ |
198 | CmdQueLen--; |
199 | |
200 | #define SiS300SetupSRCFG(color) \ |
201 | if(CmdQueLen <= 0) SiS300Idle;\ |
202 | MMIO_OUT32(ivideo->mmio_vbase, BR(9), color);\ |
203 | CmdQueLen--; |
204 | |
205 | #define SiS300SetupSRCBG(color) \ |
206 | if(CmdQueLen <= 0) SiS300Idle;\ |
207 | MMIO_OUT32(ivideo->mmio_vbase, BR(10), color);\ |
208 | CmdQueLen--; |
209 | |
210 | /* 0x8224 src colorkey high */ |
211 | /* 0x8228 src colorkey low */ |
212 | /* 0x821c dest colorkey high */ |
213 | /* 0x8220 dest colorkey low */ |
214 | #define SiS300SetupSRCTrans(color) \ |
215 | if(CmdQueLen <= 1) SiS300Idle;\ |
216 | MMIO_OUT32(ivideo->mmio_vbase, 0x8224, color);\ |
217 | MMIO_OUT32(ivideo->mmio_vbase, 0x8228, color);\ |
218 | CmdQueLen -= 2; |
219 | |
220 | #define SiS300SetupDSTTrans(color) \ |
221 | if(CmdQueLen <= 1) SiS300Idle;\ |
222 | MMIO_OUT32(ivideo->mmio_vbase, 0x821C, color); \ |
223 | MMIO_OUT32(ivideo->mmio_vbase, 0x8220, color); \ |
224 | CmdQueLen -= 2; |
225 | |
226 | #define SiS300SetupMONOPAT(p0,p1) \ |
227 | if(CmdQueLen <= 1) SiS300Idle;\ |
228 | MMIO_OUT32(ivideo->mmio_vbase, BR(11), p0);\ |
229 | MMIO_OUT32(ivideo->mmio_vbase, BR(12), p1);\ |
230 | CmdQueLen -= 2; |
231 | |
232 | #define SiS300SetupClipLT(left,top) \ |
233 | if(CmdQueLen <= 0) SiS300Idle;\ |
234 | MMIO_OUT32(ivideo->mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\ |
235 | CmdQueLen--; |
236 | |
237 | #define SiS300SetupClipRB(right,bottom) \ |
238 | if(CmdQueLen <= 0) SiS300Idle;\ |
239 | MMIO_OUT32(ivideo->mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\ |
240 | CmdQueLen--; |
241 | |
242 | /* General */ |
243 | #define SiS300SetupROP(rop) \ |
244 | ivideo->CommandReg = (rop) << 8; |
245 | |
246 | #define SiS300SetupCMDFlag(flags) \ |
247 | ivideo->CommandReg |= (flags); |
248 | |
249 | #define SiS300DoCMD \ |
250 | if(CmdQueLen <= 1) SiS300Idle;\ |
251 | MMIO_OUT32(ivideo->mmio_vbase, BR(15), ivideo->CommandReg); \ |
252 | MMIO_OUT32(ivideo->mmio_vbase, BR(16), 0);\ |
253 | CmdQueLen -= 2; |
254 | |
255 | /* -------------- SiS 315/330 series --------------- */ |
256 | |
257 | /* Q_STATUS: |
258 | bit 31 = 1: All engines idle and all queues empty |
259 | bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty |
260 | bit 29 = 1: 2D engine is idle |
261 | bit 28 = 1: 3D engine is idle |
262 | bit 27 = 1: HW command queue empty |
263 | bit 26 = 1: 2D queue empty |
264 | bit 25 = 1: 3D queue empty |
265 | bit 24 = 1: SW command queue empty |
266 | bits 23:16: 2D counter 3 |
267 | bits 15:8: 2D counter 2 |
268 | bits 7:0: 2D counter 1 |
269 | */ |
270 | |
271 | #define SiS310Idle \ |
272 | { \ |
273 | while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \ |
274 | while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \ |
275 | while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \ |
276 | while( (MMIO_IN16(ivideo->mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){} \ |
277 | CmdQueLen = 0; \ |
278 | } |
279 | |
280 | #define SiS310SetupSRCBase(base) \ |
281 | if(CmdQueLen <= 0) SiS310Idle;\ |
282 | MMIO_OUT32(ivideo->mmio_vbase, SRC_ADDR, base);\ |
283 | CmdQueLen--; |
284 | |
285 | #define SiS310SetupSRCPitch(pitch) \ |
286 | if(CmdQueLen <= 0) SiS310Idle;\ |
287 | MMIO_OUT16(ivideo->mmio_vbase, SRC_PITCH, pitch);\ |
288 | CmdQueLen--; |
289 | |
290 | #define SiS310SetupSRCXY(x,y) \ |
291 | if(CmdQueLen <= 0) SiS310Idle;\ |
292 | MMIO_OUT32(ivideo->mmio_vbase, SRC_Y, (x)<<16 | (y) );\ |
293 | CmdQueLen--; |
294 | |
295 | #define SiS310SetupDSTBase(base) \ |
296 | if(CmdQueLen <= 0) SiS310Idle;\ |
297 | MMIO_OUT32(ivideo->mmio_vbase, DST_ADDR, base);\ |
298 | CmdQueLen--; |
299 | |
300 | #define SiS310SetupDSTXY(x,y) \ |
301 | if(CmdQueLen <= 0) SiS310Idle;\ |
302 | MMIO_OUT32(ivideo->mmio_vbase, DST_Y, (x)<<16 | (y) );\ |
303 | CmdQueLen--; |
304 | |
305 | #define SiS310SetupDSTRect(x,y) \ |
306 | if(CmdQueLen <= 0) SiS310Idle;\ |
307 | MMIO_OUT32(ivideo->mmio_vbase, DST_PITCH, (y)<<16 | (x) );\ |
308 | CmdQueLen--; |
309 | |
310 | #define SiS310SetupDSTColorDepth(bpp) \ |
311 | if(CmdQueLen <= 0) SiS310Idle;\ |
312 | MMIO_OUT16(ivideo->mmio_vbase, AGP_BASE, bpp);\ |
313 | CmdQueLen--; |
314 | |
315 | #define SiS310SetupRect(w,h) \ |
316 | if(CmdQueLen <= 0) SiS310Idle;\ |
317 | MMIO_OUT32(ivideo->mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\ |
318 | CmdQueLen--; |
319 | |
320 | #define SiS310SetupPATFG(color) \ |
321 | if(CmdQueLen <= 0) SiS310Idle;\ |
322 | MMIO_OUT32(ivideo->mmio_vbase, PAT_FGCOLOR, color);\ |
323 | CmdQueLen--; |
324 | |
325 | #define SiS310SetupPATBG(color) \ |
326 | if(CmdQueLen <= 0) SiS310Idle;\ |
327 | MMIO_OUT32(ivideo->mmio_vbase, PAT_BGCOLOR, color);\ |
328 | CmdQueLen--; |
329 | |
330 | #define SiS310SetupSRCFG(color) \ |
331 | if(CmdQueLen <= 0) SiS310Idle;\ |
332 | MMIO_OUT32(ivideo->mmio_vbase, SRC_FGCOLOR, color);\ |
333 | CmdQueLen--; |
334 | |
335 | #define SiS310SetupSRCBG(color) \ |
336 | if(CmdQueLen <= 0) SiS310Idle;\ |
337 | MMIO_OUT32(ivideo->mmio_vbase, SRC_BGCOLOR, color);\ |
338 | CmdQueLen--; |
339 | |
340 | #define SiS310SetupSRCTrans(color) \ |
341 | if(CmdQueLen <= 1) SiS310Idle;\ |
342 | MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_HIGH, color);\ |
343 | MMIO_OUT32(ivideo->mmio_vbase, TRANS_SRC_KEY_LOW, color);\ |
344 | CmdQueLen -= 2; |
345 | |
346 | #define SiS310SetupDSTTrans(color) \ |
347 | if(CmdQueLen <= 1) SiS310Idle;\ |
348 | MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_HIGH, color); \ |
349 | MMIO_OUT32(ivideo->mmio_vbase, TRANS_DST_KEY_LOW, color); \ |
350 | CmdQueLen -= 2; |
351 | |
352 | #define SiS310SetupMONOPAT(p0,p1) \ |
353 | if(CmdQueLen <= 1) SiS310Idle;\ |
354 | MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK, p0);\ |
355 | MMIO_OUT32(ivideo->mmio_vbase, MONO_MASK+4, p1);\ |
356 | CmdQueLen -= 2; |
357 | |
358 | #define SiS310SetupClipLT(left,top) \ |
359 | if(CmdQueLen <= 0) SiS310Idle;\ |
360 | MMIO_OUT32(ivideo->mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\ |
361 | CmdQueLen--; |
362 | |
363 | #define SiS310SetupClipRB(right,bottom) \ |
364 | if(CmdQueLen <= 0) SiS310Idle;\ |
365 | MMIO_OUT32(ivideo->mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\ |
366 | CmdQueLen--; |
367 | |
368 | #define SiS310SetupROP(rop) \ |
369 | ivideo->CommandReg = (rop) << 8; |
370 | |
371 | #define SiS310SetupCMDFlag(flags) \ |
372 | ivideo->CommandReg |= (flags); |
373 | |
374 | #define SiS310DoCMD \ |
375 | if(CmdQueLen <= 1) SiS310Idle;\ |
376 | MMIO_OUT32(ivideo->mmio_vbase, COMMAND_READY, ivideo->CommandReg); \ |
377 | MMIO_OUT32(ivideo->mmio_vbase, FIRE_TRIGGER, 0); \ |
378 | CmdQueLen -= 2; |
379 | |
380 | int sisfb_initaccel(struct sis_video_info *ivideo); |
381 | void sisfb_syncaccel(struct sis_video_info *ivideo); |
382 | |
383 | int fbcon_sis_sync(struct fb_info *info); |
384 | void fbcon_sis_fillrect(struct fb_info *info, const struct fb_fillrect *rect); |
385 | void fbcon_sis_copyarea(struct fb_info *info, const struct fb_copyarea *area); |
386 | |
387 | #endif |
388 | |